Hexadecimal to Base64 Conversion

Converting MD5 checksum to base64 will shorten the length from 32 characters to 24 characters.

Let’s say we are converting the MD5 checksum below

ef2eff22b9eddfac2f242245c66cddb1

To convert hexadecimal to base64, run the command below

echo ef2eff22b9eddfac2f242245c66cddb1|xxd -r -p|base64
# 7y7/Irnt36wvJCJFxmzdsQ==

To convert base64 back to hexadecimal

echo 7y7/Irnt36wvJCJFxmzdsQ==| base64 -d | hexdump -v -e '/1 "%02x" '
#ef2eff22b9eddfac2f242245c66cddb1

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